FLOW CHARACTERISTICS OF WAXY CRUDE OILS - APPLICATION TO PIPELINE DESIGN

被引：115

作者：

WARDHAUGH, LT ^{[1
]}

BOGER, DV ^{[1
]}

机构：

[1] UNIV MELBOURNE,DEPT CHEM ENGN,PARKVILLE,VIC 3052,AUSTRALIA

来源：

AICHE JOURNAL | 1991年 / 37卷 / 06期

关键词：

D O I：

10.1002/aic.690370610

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Waxy crude oils are highly non-Newtonian materials known to cause handling and pipelining difficulties and whose flow properties are time- and history-dependent. Experimental techniques are described that enable reproducible steady-state flow property data to be obtained from rotational viscometers. The flow properties are shown to depend strongly on the shear rate applied during cooling (shear history effect). This leads to a definable minimum operating point below which flow in a waxy crude oil pipeline would cease. Modified pipeline design techniques are presented for both laminar and turbulent flow at temperatures below the pour point, and it is shown that existing techniques overestimate the flow rate in laminar flow by the order of 100%. The modified design techniques can be used to quantitatively assess the performance of flow improver (pour point depressant) additives under steady-state conditions.

引用

页码：871 / 885

页数：15

共 32 条

[21] GROWTH KINETICS OF (110) FACE OF PARAFFIN C36H74 IN SOLUTION .2. GROWTH IN PRESENCE OF AN INHIBITOR DIOCTADECYLAMINE (C18H37)2NH [J].

SIMON, B ;

GRASSI, A ;

BOISTELL.R .

JOURNAL OF CRYSTAL GROWTH, 1974, 26 (01) :90-96

[22] GROWTH KINETICS OF (110) FACE OF PARAFFIN C36H74 IN SOLUTION .1. GROWTH IN PURE MEDIUM [J].

SIMON, B ;

GRASSI, A ;

BOISTELL.R .

JOURNAL OF CRYSTAL GROWTH, 1974, 26 (01) :77-89

[23]

Skelland A.H.P., 1967, NONNEWTONIAN FLOW HE

[24]

SMITH PB, 1978, OCT EUR OFFSH PETR C, P283

[25]

Szilas A.P., 1985, PRODUCTION TRANSPORT

[26]

THOMSON RW, 1984, AUG P AUST CHEM ENG, P79

[27]

Wardhaugh L.T., 1990, THESIS U MELBOURNE

[28]

WARDHAUGH LT, 1987, CHEM ENG RES DES, V65, P74

[29]

WARDHAUGH LT, 1988, NOV P SPE INT M PETR, P803

[30]

WITHERS VR, 1982, PIPELINE IND JUL, P45

← 1 2 3 4 →